RAB's Stealth Series of infrared sensors notice small temperature changes caused by the motion of people or cars within their protected zone and turns on lights automatically. They welcome guests and help to deter intruders. The adjustable time delay allows you to select the amount of time your lights will remain lit when motion is detected, from 5 Seconds to 12 Minutes. Because your lights are only turned on when needed you'll be saving money on your electric bills. A manual override mode allows you to turn off motion detection and switch your light ON/Off when needed. The unit's integrated photoelectronic sensor gives the option to turn the motion detection off when the sun rises. This kit comes assembled and pre-wired for quicker installation times and ease of use, the included EZ plate fits over all outdoor boxes eliminating any fitment issues. The rugged 1/2" mounting arms use stainless steel screws and utilize EZ grip locknuts which allow tightening with pliers, a screwdriver or even your fingers. This floodlight kit accepts 150 Watt PAR 38 lamps (sold separately) for maximum brightness.